国家自然科学基金(11071067)

作品数:7被引量:23H指数:2
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相关作者:胡宏伶陈传淼褚玉明徐言午候守伟更多>>
相关机构:湖南师范大学杭州师范大学上海财经大学湖州师范学院更多>>
相关期刊:《Science China Mathematics》《Applied Mathematics and Mechanics(English Edition)》《Journal of Computational Mathematics》《湖州师范学院学报》更多>>
相关主题:FINITE_ELEMENTEXTRAPOLATIONNEWTONERROR_ANALYSISNEW更多>>
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Global existence of real roots and random Newton flow algorithm for nonlinear system of equations To memorize Qin's method for 770 anniversaries被引量:1
《Science China Mathematics》2017年第7期1341-1352,共12页CHEN ChuanMiao HU HongLing 
National Natural Science Foundation of China(Grant Nos. 11301176,11071067 and 11226332)
To solve nonlinear system of equation,F(x) = 0,a continuous Newton flow x_t(t) = V(x) =-(DF(x))^(-1)F(x),x(0) =x^0 and its mathematical properties,such as the central field,global existence and uniqueness of real root...
关键词:nonlinear system of equation continuous Newton flow real roots global existence and uniqueness random Newton flow algorithm 
Asymptotic expansions of finite element solutions to Robin problems in H^3 and their application in extrapolation cascadic multigrid method被引量:1
《Science China Mathematics》2014年第4期687-698,共12页HU HongLing CHEN ChuanMiao PAN KeJia 
supported by National Natural Science Foundation of China(Grant Nos.11226332,41204082 and 11071067);the China Postdoctoral Science Foundation(Grant No.2011M501295);the Research Fund for the Doctoral Program of Higher Education of China(Grant No.20120162120036);the Construct Program of the Key Discipline in Hunan Province
For the Poisson equation with Robin boundary conditions,by using a few techniques such as orthogonal expansion(M-type),separation of the main part and the finite element projection,we prove for the first time that the...
关键词:finite element Richardson extrapolation Robin problem asymptotic expansion cascadic multi-grid method 
Runge-Kutta method, finite element method, and regular algorithms for Hamiltonian system被引量:2
《Applied Mathematics and Mechanics(English Edition)》2013年第6期747-760,共14页胡妹芳 陈传淼 
Project supported by the National Natural Science Foundation of China (No. 11071067);the Hunan Graduate Student Science and Technology Innovation Project (No. CX2011B184)
The symplectic algorithm and the energy conservation algorithm are two important kinds of algorithms to solve Hamiltonian systems. The symplectic Runge- Kutta (RK) method is an important part of the former, and the ...
关键词:Hamiltonian system energy conservation SYMPLECTICITY finite elementmethod Runge-Kutta method 
共轭梯度法的l^2模收敛性研究
《湖南师范大学自然科学学报》2013年第3期15-17,共3页胡宏伶 陈传淼 
国家自然科学基金资助项目(11071067,11226332);湖南省教育厅资助科研项目(11C0831)
讨论了共轭梯度法(Conjugate Gradient,CG)在l2模意义下的单调性与收敛性.所得结论对结合共轭梯度法来求解大规模线性方程组的各类方法,特别是对研究外推瀑布式多重网格法(EXCMG)按l2模的收敛性有重要作用.
关键词:共轭梯度法 单调性 收敛性 
非线性方程组的Newton流线法被引量:8
《计算数学》2012年第3期235-258,共24页陈传淼 胡宏伶 雷蕾 曾星星 
国家自然科学基金(No.11071067)资助项目
为求解非线性方程组F(x)=0,研究了Newton流方程x_t(t)=V(x)=-(DF(x))^(-1)F(x),x(0)=-x^0,及数值Newton流x^(j+1)=x^j+hV(x^j),h∈(0,1].导出了减幅指标g_j(h)=‖F(x^(j+1)‖/‖F(x^j)‖=1-h+h^2d_j(h)<1和m重根x~*附近的表示g_j(h)=(1-...
关键词:非线性方程组 Newton流线法 中心场 可计算量 求所有的根 
ON EXTRAPOLATION CASCADIC MULTIGRID METHOD被引量:11
《Journal of Computational Mathematics》2011年第6期684-697,共14页Chuanmiao Chen Zhong-Ci Shi Hongling Hu 
The research is supported by the National Natural Science Foundation of China (No. 11071067) and the Key Laboratory of Education Ministry.
Based on an asymptotic expansion of (bi)linear finite elements, a new extrapolation formula and extrapolation cascadic multigrid method (EXCMG) are proposed. The key ingredients of the proposed methods are some ne...
关键词:Cascadic multigrid Finite element New extrapolation Error analysis. 
对数平均的最佳上下界(英文)
《湖州师范学院学报》2011年第1期7-10,共4页候守伟 徐言午 褚玉明 
This researchis supported by the Natural Science Foundation of China(11071067);the Innovation Team Foundation of the Depart ment of Education of Zhejiang Porvince(T200924)
利用初等微分学比较了对数平均与平方根平均和调和平方根平均的凸组合,发现了使得双向不等式αS(a,b)+(1-α)H(a,b)0且a≠b成立的α的最大值和β的最小值,其中S(a,b)=((a2+b2)/2)^(1/2),H(a,b)=...
关键词:平方根平均 调和平方根平均 对数平均 
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